Construction of ships



G. V. MONTARULI. CONSTRUCTION OF SHIPS.

APPLICATION men was 4. 1919'.

Patented June 29, 1920. [27 2 SHEETS-SHEET I.

Mew i 01, G. VMonforuflI e. v. MONTARULI. CONSTRUCTION OF SHIPS-APPLICATION FILED JUNE 4' I919.

Pdtpnted June 29, 1920.

2 SHEETS-SHEET 2.

Ewan/drab iitiTi! UNITED;

PATENT OFFICE,

GIUISEPPE VITULLI MONTARULI, 0F ROME, ITALY.

Specification of Letters fatent.

Patented June '29, 1920.

Application filed June 4, 1919. Serial No. 301,619.

To all whom it may concern:

Be it known that I, Grusnrrn VrrULLI MONTARULI, a subject of the King ofItaly, and residing at 9 Piazzale Flaminia, Rome, Italy, have inventedcertain new and useful Improvements in the Construction of Ships, ofwhich the following is a specification.

My invention relates to the construction of surface-going ships andconsists of an improved form of hull of the type described in myprevious Patent Number 1,295,786,

- granted Feb. 25, 1919, in which the waist of the ship has curvedtransverse frames throughout and the end portions have frames whosecross-section is formed of circular segments above and below andstraight lines of gradually increasing length laterally.

According to the present invention the transverse frames of the centralportion of the hull are not in the shape of a continuous curve of, forexample, circular, elliptical or oval cross section, but the curve is interrupted at points by straight lines connecting with the curved parts.

The invention is illustrated by way of example in the accompanyingdrawing, i which- I Figure 1 shows on the left-hand side the midshipsection of the hull and on the righthand side the curvature of thissection,

Fig. 2 shows the hull divided into three parts of different geometricalshape,

Fig. 3 shows in plan and Figs.v 4 and 5 in projections of verticalsections, the shape of the hull forward and aft.

In Fig. 1, the curved portion A, B, C is a semi-circle which has itscenter at D and connects at its ends A and C with rectilinear parts A Eand C F so as to make up a frame which consists of a circular part A, B,C and of rectilinear parts E A and C F above and below to form half asection of the central part 3 in Fig. 2 of the hull.

The forward end 4 (Fig. 2) is built up from section 6 of midship sectiononward with the aid of sections 7, 8, 9, 10 and 11 which consist ofcircular arcs connected b straight lines above and below and of gra ofmidship section so as to reach gradually along sections 14, 15, 16, 17and 18 the rectilinear vertical stern section 19, the only differencebetween the forward and after endportions being that the latter istapered below so as to leave there a free space for the working of thescrews.

The shape of the hull built up in the above described manner allows ofits main parts being constructed with interchangeable elements ofconstant curvature, whereby a standardization of the construction isattained for building ships in series.

As regards the central portion of the ship, this construction is shownin cross section at 1 on the left and diagrammatically at 2 on the righthand side of Fig. 1. In this central part the section of the hullconsists substantially of a frame 20 which may have the section of anyordinary bar used in shipbuilding, and of layers of plates to form theouter plating 21.

A double bottom 22 may have any desired shape, and 23 is a hatchway and24 a section of the deck in communication with the hatchways.

It is to be understood that the rectilinear interruption orinterruptions of the curve which forms the cross section of the waist,may be provided at any desired or appropriate point or points, forexample, above and below, as described, or laterally, and 1 so on.

a What I claim is:

1. A ship having a plurality of transverse frames, the frames throughoutthe waist of the ship being in the shape of a plane curve interrupted atpoints by straight lines, and the end portions having similar frameswith straight lines at the sides of gradually increasing length.

2. A ship having a plurality of transverse frames, the frames throughoutthe waist of the ship being in the shape of a curve interrupted atpoints by straight lines and the end portions having. cross sectionsformed of similar curved sections having vertical straight portions ofgradually increasing length toward the ends.

3. A ship having a plurality of trans verse frames, the framesthroughout the waist of the ship bein in the shape of a curveinterrupted at points by straight lines and the end portions have crosssections formed of curved segments with straight name, in the presenceof two subsei ibing lines above and below and straight lines ofWitnesses, at'Rome this 3rd day of May, gradually increasing length atthe sides, the 1919.

frames of the after end being shaped so as GIUSEPPE VITULLI MONTARULI. 5to provide for the said end being tapered Witnesses:

below. Y LUIGI EMILIOASI,

In testimony whereof I have signed my F ORTUNI BOSALLO.

